Punctures due to perforation or nipping impact (edges of sidewalks in the city or rocks for mountain bikes, etc.) are a major fear among all cyclists. Repairing or changing an inner tube is not always a very simple operation. An inner tube must be regularly re-inflated.
Thanks to its uneven design, the MICHELIN Protek Max inner tube undergoes a "compression" reaction in the event of piercing or nipping (the hole closes up naturally), whereas a classic inner tube has an "extension" reaction (balloon effect).
This self-plugging effect is enhanced by adding the preventive sealant originally supplied.
|PART #||Valve||Length (mm)||Type||ETRTO||Size||Weight (g)|
|477029||Schrader||35mm||G4||37/47-406||20 x 1.5-2.125||210g|
|951590||Presta||40mm||C4||47/58-559||26 x 1.9-2.25||330g|
|443122||Schrader||35mm||C4||47/58-559||26 x 1.85-2.25||330g|
|306656||Presta||40mm||B4||48/62-584||27.5 x 1.9-2.6||355g|
|421612||Presta||40mm||A4||47/58-622||29 x 1.85-2.5||370g|